Adds markup/css for legacy id toggle in order-creation interface
Finalizes the markup for the legacyIds checkbox on the order-creation page
Captures the "checked" value of <input name="legacyIds"> and carries it to the next step of order creation
Temporarily hides the "legacyIds" input for continued development
Revert "Temporarily hides the "legacyIds" input for continued development"

This reverts commit 0f439e472c2b922b84092b4bbd9d8626f68156df.
Temporarily hides the "legacyIds" input for further development
Merge branch 'legacy-id'